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4. Optical correctors
The need to control the wavefront has led to the emergence of numerous technologies, such as deformable mirrors, liquid crystal modulators and liquid lenses. In AO, the choice of corrector must be guided by its ability to reproduce a time-varying aberration with a given degree of accuracy. The corrector's performance must therefore be analyzed in terms of its spatio-temporal characteristics. In this analysis, we focus on Deformable Mirrors (DM), whose advantages include achromaticity and the ability to correct numerous modes with a bandwidth generally far superior to that of the other solutions mentioned above. As such, they are used in the majority of AO systems. We also exclude so-called "active" mirrors, designed to correct quasi-static or slowly varying phenomena and associated with active optics, whose temporal characteristics are therefore significantly different. Numerous parameters...
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Bibliography
Software tools
OOMAO, object-oriented Matlab adaptive optics simulator, the most widely used de facto AO digital environment, integrating functions adapted to :
Monte-Carlo simulations in physical optics,
analytical studies of OA
conducting hardware-in-the-loop optical experiments.
Events
AO4ELT: biennial conference dedicated to adaptive optics for ELTs and their instruments
http://ao4elt6.copl.ulaval.ca/
Alternatively with SPIE Astronomical Telescopes + Instrumentation
https://spie.org/conferences-and-exhibitions/astronomical-telescopes-and-instrumentation
...Directory
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Applications: astronomy
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Products: deformable mirrors, wave surface analyzers, real-time computers, systems...
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